DPGEN_NUL − Zero Detector Macro-Generator
#include <genlib.h>
void GENLIB_MACRO (DPGEN_NUL, char *modelname, long flags, long N);
Generate a N bits zero detector named modelname.
TERMINAL NAMES
1. |
i0 : value to check (input, N bits). |
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2. |
q : null flag (output, 1 bit). |
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3. |
vdd : power. |
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4. |
vss : ground. |
BEHAVIOR
q <= <= ’1’ WHEN (i0 = X"00000000") ELSE ’0’;
GENLIB_MACRO(DPGEN_NUL, "model_nul_32"
, F_BEHAV|F_PLACE
, 32
);
GENLIB_LOINS( "model_nul_32"
, "instance1_nul_32"
, "i0[31:0]"
, "q" /* Flag null. */
, "vdd", "vss", NULL
);